package com.example.martian.utils;
import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class GetAndPostParams extends HttpServlet {

    private static final long serialVersionUID = 56876549214L;

    public GetAndPostParams() {
        super();
    }
    protected void doGet(HttpServletRequest request,
                         HttpServletResponse response) throws ServletException, IOException {
        PrintWriter writer = response.getWriter();
        writer.println("GET " + request.getRequestURL() + " "
                + request.getQueryString());
        Map<String, String[]> params = request.getParameterMap();
        String queryString = "";
        for (String key : params.keySet()) {
            String[] values = params.get(key);
            for (int i = 0; i < values.length; i++) {
                String value = values[i];
                queryString += key + "=" + value + "&";
            }
        }
        // 去掉最后一个空格
        queryString = queryString.substring(0, queryString.length() - 1);
        writer.println("GET " + request.getRequestURL() + " " + queryString);
    }
    protected void doPost(HttpServletRequest request,
                          HttpServletResponse response) throws ServletException, IOException {
        PrintWriter writer = response.getWriter();
        Map<String, String[]> params = request.getParameterMap();
        String queryString = "";
        for (String key : params.keySet()) {
            String[] values = params.get(key);
            for (int i = 0; i < values.length; i++) {
                String value = values[i];
                queryString += key + "=" + value + "&";
            }
        }
        // 去掉最后一个空格
        queryString = queryString.substring(0, queryString.length() - 1);
        writer.println("POST " + request.getRequestURL() + " " + queryString);
    }
    public static JSONObject sendGet(String url, String param)
    {
        String result = "";
        try{
//            String urlName = url + "?"+param;
            String urlName = url + param;//
            URL U = new URL(urlName);
            URLConnection connection = U.openConnection();
            connection.connect();
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            while ((line = in.readLine())!= null)
            {
                result += line;
            }
            in.close();
        }catch(Exception e){
            e.printStackTrace();
            System.out.println("Helloword！！"+e);
        }
        return JSONObject.parseObject(result);
    }
    public static String sendPost(String url,String param)
    {
        String result="";
        try{
            URL httpurl = new URL(url);
            HttpURLConnection httpConn = (HttpURLConnection)httpurl.openConnection();
            httpConn.setDoOutput(true);
            httpConn.setDoInput(true);
            PrintWriter out = new PrintWriter(httpConn.getOutputStream());
            out.print(param);
            out.flush();
            out.close();
            BufferedReader in = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
            String line;
            while ((line = in.readLine())!= null)
            {
                result += line;
                System.out.println(result);
            }
            in.close();
        }catch(Exception e){
            System.out.println("Helloword！"+e);
        }
        return result;
    }
}